Maybe should be under humor, maybe not, it is philosophical. As a New Yorker might say: I don’t know from zombies.
maverickphilosopher.typepad.com/ … minds.html
Yes, I think it belongs in “philosophical.” I’m sitting in a coffee shop waiting for my husband to get off work and it is noisy here – so I cannot understand it. That definitely puts it in the philosophical or humor categories – but I usually know humor when I see it even if I don’t think it’s funny. 
For example, I usually don’t find Seinfeld funny but I know why my husband thinks it’s funny. Definitely philosophy. Maybe I can look at it later when the noise has gone. I’m a little too right-brained to tune the pop music out.